JPH07299605A - New material replenishing device for bar supply machine - Google Patents

Abstract

PURPOSE:To prevent noise or vibration generated when a bar falls from a material shelf, simplify a structure of a new material replenishing mechanism, and improve a degree of design freedom in the arrangement or a structural design of a rotary swing preventive device or the like. CONSTITUTION:A new material replenishing device is arranged on the opposite side of a material shelf 8 to the bar feed axis X-X, and has the rotary axis 10 extending substantially in parallel to the bar feed axis, a swinging member 20 to rotate with the rotary axis as its center and a driving device 30 to rotate the swinging member in the first and the second rotational directions, and the swinging member has a prescribed width, and extends in the direction substantially orthogonal to the bar feed axis. The swinging member has a pushing-up part 21 having a bar pushing-up plane 23 butting a bar situated in the lowest end part of an inclined plane of a material shelf by first rotational directional rotary motion, an inclined part having an inclined plane 24 which continues with the pushing-up plane and extends toward the rotary axis and a bar receiving part 25 which has a bar guide surface continuing with the inclined plane and can be arranged with the bar feed axis by second rotational directional rotary motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new material replenishing device for a bar material supplying machine, and more particularly, it has a material shelf on which a plurality of bar materials to be supplied to a bar material processing device are placed. The present invention relates to a new material replenishing device for a bar material feeder configured to replenish bar material on a shelf onto a bar material feeding axis line.

[0002]

2. Description of the Related Art A bar processing apparatus such as an NC automatic lathe, an automatic cutting machine, an automatic polishing machine or an automatic grinder is widely put into practical use. Further, there is known a bar material feeder or a bar material feeder (hereinafter referred to as a bar material feeder) configured to automatically supply a relatively long bar material to a bar material processing device. There is. Such a bar material feeder is provided with a bar material supply mechanism for supplying the bar material to the bar material processing device, and the bar material feeding mechanism is a feed arrow for feeding the bar material to a lathe or the like and a pusher or the like. It is provided with a bar feed member and a feed member drive mechanism including a drive motor and a chain. The bar material feeder also has a new material replenishing mechanism including a material rack for stocking a plurality of bar materials (new materials) to be supplied to a lathe and the like and appropriately replenishing them. Generally, after a turning tool cuts off the final product from the bar material, the bar material feeder discharges the residual material, and then the new material of the new material replenishing mechanism is replenished to the bar material feeding mechanism. New materials are supplied to lathes, etc. by the feed arrows of the material feeding mechanism.
The structure of the new material supply mechanism is described in, for example, Japanese Patent Laid-Open No. 6-704.
A material shelf having an inclined surface, as disclosed in Japanese Patent Publication No.
The new material take-out device is arranged in the lower area of the material shelf, and the new material take-out device has a shelf board actuating device for rocking the shelf board, a swinging arm that rotates when taking out the new material, and a swinging device. And a new material pushing-up member provided at the tip of the moving arm. A plurality of bar materials (new materials) are placed on the inclined surface of the material shelf, and the new material pushing member pushes up the bar material located at the lowermost end of the inclined surface and drops the bar material from the material shelf. As a result, the bar is put into the bar-feeding guide rail or the guide pipe. A new material replenishing mechanism having a similar structure is also disclosed in Japanese Patent Application Laid-Open No. 59-107804 filed by the applicant of the present application.

A new material replenishing mechanism having another structure is disclosed in Japanese Unexamined Patent Publication No. Sho 62-208802. The new material replenishing mechanism disclosed in the publication has a new material pushing member that moves up and down, and the pushing member pushes up the bar material on the material shelf and separates the bar material from the material shelf. The bar material feeder disclosed in the above publication further has a bar material placing member movable in the width direction of the bar material feeder, and the bar material placing member receives the bar material that has been separated from the material shelf, Move the bar onto the bar feed axis. Also,
The bar material feeder is provided with various accessories or control parts in order to smoothly and reliably perform a predetermined bar material supplying operation.
As such an accessory or a control part, for example, a roller type or belt type rotary steady rest device equipped with a steady rest roller or a belt for suppressing the rotary shake or minute vibration of a bar material which rotates at a high speed during processing (Japanese Patent Application Laid-Open Publication No. Sho. 63-278703,
Japanese Patent Publication No. 61-5842, Japanese Patent Publication No. 3-75281, Japanese Patent Publication No. 5-81363, etc.) are arranged at a predetermined position of the bar feeder.

[0004]

However, in the above new material replenishing mechanism including the shelf operating device, the new material pushing member, the pushing member operating mechanism, etc., the bar material drops from the material shelf into the guide rail. At that time, relatively large noise or vibration is likely to occur. In particular, it has a relatively large diameter, so
When a bar having a large self-weight is inserted into the guide rail, a large impact is exerted on the guide rail when the bar falls, which may cause undesirable vibration in the bar feeder. In addition, in the above-mentioned new material supply mechanism including the bar material mounting member, a relatively complicated operation mechanism for moving or sliding the bar material mounting member has to be arranged on the main body frame, so The structure of the machine becomes complicated. Further, this operating mechanism is mainly arranged in the lower region of the material shelf and in the vicinity of the inner end portion (lower end portion in the inclination direction) of the material shelf, and has a drawback that the assembling work of the bar feeder becomes complicated. Further, in the conventional new material replenishment mechanism, a guide rail or a bar material mounting member that receives the bar material (new material) dropped or removed from the material shelf is provided along the bar material feeding axis along the length of the bar material feeder. Therefore, accessories or control parts, such as a steady rest, that extend in the direction and therefore interfere with the guide rails etc. must be positioned near the front end of the bar feeder. As a result, there are design limitations when improving or changing the arrangement or structure of the rotation steadying device or the like.

The optimum position of the rotation steadying device is
It changes depending on the type of the bar material, for example, the shape of the bar material such as a deformed material such as a hexagonal material or the shape of a round material having a circular cross section, or the diameter and weight of the bar material. However, in the bar material feeder having the conventional structure including the guide rail or the bar material mounting member,
In many cases, it may be difficult to place or move the rotation steadying device at a desired position. The present invention has been made in view of the above problems, and an object thereof is to prevent noise or vibration that may occur when a bar material falls from a material shelf, and simplify the structure of a new material supply mechanism. Another object of the present invention is to provide a new material replenishing device for a bar material feeder, which can improve the degree of freedom in the layout or structural design of the rotation steadying device and the like.

[0006]

In order to achieve the above-mentioned object, the present invention has a material shelf on which a plurality of bar materials to be supplied to a bar material processing apparatus are placed, and a bar material on the material shelf. In a new material replenishing device for a bar material feeder configured to replenish the bar material on a bar material feeding axis, the bar material feeding axis line is arranged on the opposite side of the material shelf with respect to the bar material feeding axis line. A rotation axis extending substantially parallel to the rotation axis, a swing member that rotates about the rotation axis, and a drive device that rotates the swing member in the first and second rotation directions. The oscillating member has a predetermined width and extends substantially in a direction orthogonal to the bar material feeding axis, and the oscillating member is rotated by a rotational movement in a first rotational direction so that the oscillating member is located at the maximum of the inclined plane of the material shelf. A push-up portion having a rod push-up surface that abuts the rod located at the lower end, and a push-up portion that is continuous with the push-up surface and extends toward the rotation axis. A slanted portion having a slanted surface; and a rod-shaped material receiving portion which has a rod-shaped material guide surface continuous with the slanted surface and which can be aligned with the rod-shaped material feeding axis by the rotational movement in the second rotation direction. Provide a new material replenishing device.

In a preferred embodiment of the present invention, the rocking member extends in a direction substantially orthogonal to the rod feeding axis, and the push-up portion for pushing up the rod on the material shelf is provided with:
A curved tip surface defined by an arc having a predetermined radius from the rotation axis, and a bar pushing-up surface extending within an angular range from the radial direction of the rotation axis to the central axis direction of the rocking member. Have. More preferably, the inclined surface extends continuously and downward at a predetermined angle with respect to the bar pushing-up surface,
It intersects with the central axis of the rocking member and is continuous with the bottom surface of the bar receiving portion arranged in the substantially central region of the rocking member. Preferably,
The bottom surface is formed of a curved concave portion that is substantially complementary to the cross section of the bar material, and the center of curvature of the bottom surface coincides with the center of the bar receiving portion and is located on the central axis of the rocking member. When the member is in the horizontal position (feed position), the center of the rod receiving portion coincides with the rod feeding axis. In a further preferred embodiment of the present invention, the bar receiving portion is provided with a bar stopping wall continuous with the bottom surface on the side opposite to the inclined surface, and the bar stopping wall is the central axis of the rocking member. Substantially orthogonal. In one embodiment of the present invention, the drive device has a fluid actuated cylinder device, and a piston rod of the cylinder device is integrally connected to a rotary shaft via a swing lever, Rotates normally or reversely due to the expansion and contraction of the piston rod, and selectively moves the swing member to the rod feeding position, the rod pushing position and the retracted position.

The present invention also has a new material replenishing device, a bar material feeding device, and a rotation steadying device for suppressing rotational runout of a bar material that rotates at high speed during processing. And a bar stock, on which a plurality of bar stocks to be supplied to the bar stock processing apparatus are placed, and a new stock supply member for supplying the stock bar stock on the stock bar supply axis. The material feeding device includes a bar material feeding member that feeds a bar material on a bar material feeding axis to a bar material processing device, and a bar material feeding mechanism that drives the bar material feeding member. In the new material replenishing device, the new material replenishing device is supported so as to be rotatable about an axis of rotation of the axis of rotation which is arranged on the opposite side of the material rack from the axis of feeding the bar. And a new material replenishing member having a predetermined width and extending substantially in a direction orthogonal to the bar material feeding axis,
The new material replenishing member includes a push-up portion having a rod material pushing surface that abuts a rod material located at the lowermost end of the inclined plane of the material shelf during the rotational movement in the first rotation direction, and the push-up portion. An inclined portion having an inclined surface which is continuous with the raising surface and extends toward the rod feeding axis, and a rod guide surface which is continuous with the inclined surface, and which feeds the rod by the rotational movement in the second rotation direction. There is provided a bar material feeder having a bar material receiving portion that can be aligned with an axis.

In a preferred embodiment of the present invention, the rotation steadying device is arranged in an area between the new material replenishing members. For example, the rotation steadying device and the new material replenishing member are alternately arranged along the rod feeding axis. Preferably, the rotation steadying device is movably attached to the main body frame or the frame of the bar material feeder so as to be movable parallel to the bar material feeding axis.

[0010]

According to the above configuration of the present invention, the swing member or the new material replenishing member is rotated about the rotation axis arranged on the side opposite to the material rack with respect to the bar feeding axis. During the rotational movement in the first rotation direction, for example, the normal rotation direction, the bar surface on the material shelf is pushed up by the pushing surface. The pushed rod material rolls on the inclined surface of the inclined portion and is accommodated in the rod receiving portion. Second
Due to the rotational movement in the rotational direction, for example in the reverse direction, the bar receiving portion is aligned with the bar feeding axis and supports the bar on the bar feeding axis.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. 1 and 2 are a schematic side view and a schematic plan view showing the overall configuration of the bar feeder. The bar material feeder 1 is arranged adjacent to an NC automatic lathe N (only a part of the outer shape is schematically shown by imaginary lines) arranged in front of the bar material feeder 1. The bar material feeding axis XX of the bar material feeder 1 coincides with the machining axis line of the automatic lathe, and the bar material feeder 1 is aligned with the automatic lathe N on the axis line XX. The bar material feeder 1 includes a main body frame or a base 3 supported by front and rear stands 2, a primary introduction bar material feeding member 4 (FIG. 3) and a secondary introduction bar arranged above the main body frame 3. The material feeding member 5 (FIG. 2) is provided. The bar material feeding member 5 is composed of a feed arrow or a feed bar (hereinafter referred to as a feed arrow) that feeds the bar material on the axis X-X toward the main shaft (not shown) of the automatic lathe N. At the time of feeding (at the time of secondary introduction), it aligns with the axis XX and moves forward or backward, and when replenishing new material, it retreats to the side of the axis XX. A finger chuck 6 that grips the rear end of the rod is rotatably attached to the front end of the feed arrow 5, and a blade portion 7 that is locked in the upper traveling zone (not shown) of the endless chain for driving feeds. The arrow 5 is fixed to the rear end portion and the front end portion, respectively. The drive endless chain is stretched around a pair of front and rear sprockets (not shown), and at least one of the sprockets is operatively connected to the output shaft of the drive motor. The endless chain, the sprocket, and the drive motor form a feed member drive mechanism. Further, on the side of the main body frame 3, a stock rack or material rack 8 (FIG. 2) holding a plurality of new bar materials to be supplied, that is, stock materials, is arranged.

Above the body frame 3, a pair of front and rear rotary shafts 10 arranged parallel to the axis X-X are arranged.
The front and rear rotary shafts 10 are arranged concentrically with each other, and are rotatably supported by a plurality of vertical brackets 11 fixed on the body frame 3. In the first half of the body frame 3,
Three sets of the steady rests 50 are arranged at intervals,
At the front end of the main body frame 3, a rotation steadying device 100 of a type different from the rotation steadying device 50 is arranged.
As the rotation steadying device 100, for example, Japanese Patent Publication No. 5-8
The roller type steady rest disclosed in Japanese Patent No. 1363 or Japanese Patent Laid-Open No. 63-278703 can be preferably used. Further, a clamp device 90 that transiently restrains the rear end of the bar is arranged in the substantially central portion of the main body frame 3. The clamp device 90 holds the bar in a stationary state when the finger chuck 6 of the feed arrow 5 grips the rear end of the bar. FIG. 3 is an enlarged vertical sectional view of the bar material feeder 1 taken along the line AA in FIG. 1, and FIG. 3 shows the configuration of a new material replenishing device. Further, FIG. 4 is an enlarged side view showing the configuration of the new material supply device. The material shelf 8 includes a plurality of shelf members or shelf plates 80 on which a plurality of bar materials (new materials) W1 to W7 can be placed, and the shelf members 80 are arranged on the body frame 3 at intervals. An inclined flat surface 82 for mounting a new material is formed which extends laterally and obliquely upward of the frame 3. An adjusting member 8 having a stop portion 84 is provided on the side surface of each shelf member 80.
3 is arranged. The stop portion 84 projects upward from the inclined flat surface 82 and supports the bar material (new material) W1 located at the lowermost end of the inclined flat surface 82. The adjusting member 83 is attached to each shelf member 80 so as to be movable in parallel with the inclined surface 82, and
The displacement of 3 adjusts the position of the stop portion 84. A pair of horizontally long slots 85 is formed in the adjustment member 83, and a releasable locking tool 86 such as a bolt penetrates each slot 85 and is fastened to the shelf member 80 to fix the adjustment member 83 to the shelf member. . The lower edge of the adjusting member 83 is provided with a scale, and the side surface of the shelf member 80 is provided with a fixed mark (illustrated as a triangular mark) that constitutes a reading reference of the scale.

A fluid-operated cylinder device 30 is arranged below the material rack 8, and the cylinder device 30 is composed of a pneumatic piston cylinder device oriented in a direction substantially orthogonal to the main body frame 3. The rear end portion of the cylinder device 30 is connected to the clevis-type support tool 14 via the support shaft 15, and the support tool 14 is connected to the main body frame 3 via the substrate 13.
Fixed on top. The piston rod 31 projects from the front end of the cylinder device 30 and is pivotally attached to the lower end of the swing lever 33 via a joint 32. The upper end of the swing lever 33 is fixed to the rotary shaft 10. Thus, the cylinder device 30 expands and contracts the piston rod 31 so that the rotation shaft 10 is
Is rotated counterclockwise (forward direction) or clockwise (reverse direction). The rotating shaft 10 is a bar material feeding axis X-
It is arranged on the opposite side of the material shelf 8 with respect to X (with the axis X-X in between) and extends parallel to the axis X-X. A vertical bracket 11 that rotatably supports the rotating shaft 10 is fixed to an end edge portion of the horizontal bracket 12 and extends vertically and upward from the horizontal bracket 12. A swing member or a new material supply member 20 for taking out the bar W1 on the material shelf 8 is arranged on the side surface of each vertical bracket 11. The rocking member 20 is
The base end is fixed to the rotating shaft 10 and extends radially outward from the rotating shaft 10.

The swinging member 20 is an integrally formed member having a predetermined width set relatively narrowly and extending in a direction substantially orthogonal to the axis XX. The tip end portion of the rocking member 20 constitutes a push-up portion 21 for pushing up the rod W1, and the push-up portion 21 is a curved tip end surface 22 defined by an arc having a predetermined radius from the rotating shaft 10. And a bar pushing-up surface 23 extending substantially in the central axis direction of the swinging member 20. The extending direction of the bar pushing-up surface 23 is the swing member 20.
Is preferably set within the angle range of the included angle between the direction of the central axis and the radial direction of the rotary shaft 10. The inclined surface 24 continuously extends at a predetermined angle with respect to the rod pushing-up surface 23, the inclined surface 24 intersects with the central axis of the rocking member 20,
A bar member receiving portion 2 arranged in a substantially central region of the rocking member 20.
5 to the bottom surface 26. The bottom surface 26 is composed of a curved concave portion that is substantially complementary to the cross section of the bar W, and the center of curvature of the bottom surface 26, that is, the center of the bar receiving portion 25 is the swing member 2.
Located on the central axis of 0. As shown by the solid line in FIG. 3, when the swinging member 20 is located at the horizontal position (feeding position), the center of the rod receiving portion 25 is aligned with or aligned with the axis XX. Further, the bottom surface 26 is continuous with the bar stop wall 27 that is substantially orthogonal to the central axis of the swing member 20.

The pusher 4 for primary introduction is arranged on the axis X--X, and the pusher 4 is integrally connected to the slide members 42, 42 via the support arm 41. Slide member 4
2 slides on a guide rail 43 extending parallel to the axis X--X, and the guide rail 43 is fixed to the upper end of the vertical bracket 11. The slide member 42 is locked to an endless chain (not shown) of the feed member drive mechanism. Note that FIG.
As shown in FIG. 3, the rotary shaft 10 is arranged in front of and behind the clamp device 90, and the front and rear rotary shafts 10 are respectively provided with a plurality of swing members 20 and a cylinder device operatively connected to each rotary shaft 10. 30 and 30 respectively. FIG. 5 shows B- of FIG.
FIG. 6 is an enlarged vertical sectional view taken along the line B, and FIG. 5 shows the overall configuration of the rotation steadying device 50. In addition, FIG.
FIG. 4 is an enlarged side view of the rotation steadying device 50. The rotation steadying device 50 includes a pair of upper rollers 51 and a pair of lower rollers 52. The upper roller 51 and the lower roller 52 are holders 53 and 54 equipped with anti-vibration bushes, respectively.
Rotatably supported by. Holder 53 for upper roller 51
Is attached to the upper end of a vertically extending guide rod 55, and the guide rod 55 is supported by a guide member 60 so as to be able to move up and down. The lifting drive member 56 is the guide rod 5.
5, a lifting drive device, for example, a piston rod 71 of a pneumatically actuated cylinder device 70 is integrally connected to the tip of the lifting drive member 56.

The guide rod 55 penetrates the horizontal substrate 61 that supports the guide member 60 and extends downward, and further penetrates a support block 62 fixed to the lower side of the horizontal substrate 61. An elongated hole 57 extending vertically is formed in the lower portion of the guide rod 55, and the elongated hole 57 horizontally penetrates the guide rod 55. In addition, the support block 62 has elongated holes 63 and 65 extending in the vertical direction, and the elongated holes 63 and 65 penetrate the support block 62 horizontally. The horizontal elevating pin 64 penetrates the upper end of the elongated hole 63 and the lower end of the elongated hole 57, and the horizontal elevating pin 66 penetrates the lower end of the elongated hole 65. Link members 72 interconnecting the elevating pins 64 and 66 are arranged on both sides of the support block 62, and a central portion of the link member 72 is rotatably supported by the support block 62 by a support shaft 73. Each end of the link member 72 has a slot 7
4 and 75 are respectively drilled, and the ends of the lifting pins 64 and 66 are inserted into the slots 74 and 75, respectively. Guide rod 5
The elevating pin 66 separated from 5 horizontally penetrates the guide rod 58 for elevating the lower roller 52 and is integrally fixed to the guide rod 58. Guide rod 58
Vertically penetrates the support block 62,
It is guided by 2 in the vertical direction. The holder 54 is attached to the upper end of the guide rod 58.

The support block 62 extends horizontally to the vicinity of the main body frame 3, bends upward, and slide block 6
Connected to 7. The slide block 67 slidably engages with a guide rail 68 fixed on the main body frame 3 and is movably supported along the main body frame 3. The rotation steadying device 50 is moved to a desired position on the guide rail 68, and is fixed or locked at that position by positioning / fixing means (not shown). FIG. 7 is a vertical cross-sectional view showing the support structure of the feed arrow 5. A first guide rail 44 extending in a direction orthogonal to the bar material feeding axis XX is fixed on the horizontal bracket 12, and the guide rail 44 is horizontally arranged in a lower area of the material shelf 8 (FIGS. 3 and 5). Extend. Guide rail 4
The slide block 45 is slidably supported on the slide block 4, and the second guide rail 46 is fixed on the slide block 45. The second guide rail 46 extends parallel to the axis XX,
The slide member 47 of the blade portion 7 is slidably supported, and the blade portion 7 is integrally connected to the feed arrow 5. The blade portion 7 is locked to an endless chain (not shown) of the feed member drive mechanism. Next, the operation of the bar feeder 1 will be described. (1) Operation of the new material replenishing device The position of the adjusting member 83 shown in FIG. 3 is adjusted to position the stop portion 84 of the material rack 8 at a desired position. The position of the stop portion 84 is set so that the contact point between the bar W1 and the bar W2 is located on the arc extension line of the curved front end surface 22 of the swing member 20. The cylinder device 30 pulls in the piston rod 31, and rotates the rotating shaft 10 in the counterclockwise direction (normal rotation direction). The swing member 20 rotates upward as shown by the phantom line,
The push-up unit 21 pushes up the rod W1. As a result, the bar W
1 rises above the upper end of the stop portion 84, gets over the stop portion 84, and rolls on the rod pushing-up surface 23 and the inclined surface 24 toward the rod receiving portion 25. Movement of the bar W1 (rolling)
Is regulated by the bar stop wall 27, and the bar W1 stands still on the bottom surface 26 and is accommodated in the bar receiving portion 25.

Next, the cylinder device 30 extends the piston rod 31 by a predetermined amount, rotates the rotary shaft 10 in the clockwise direction (reverse direction), and positions the swing member 20 at the horizontal position shown by the solid line. As a result, the rod W1 is positioned at the feeding position on the rod feeding axis XX. Sending arrow 5
When the rod W1 is fed, the swinging member 20 rotates downward to avoid interference with the feed arrow 5, and moves to the retracted position indicated by a virtual line. This retracting operation is executed by the cylinder device 30 completely extending the piston rod 31 and displacing the swing lever 33 laterally as shown by a virtual line. As a result of this operation, the rotary shaft 10 is rotated in the reverse direction, and the swinging member 20 is rotated downward as shown by an imaginary line to be positioned at the retracted position separated from the bar material feeding axis XX. (2) Operation of primary introduction mechanism The pusher 4 shown in FIG. 3 is a feed member drive mechanism (not shown).
The movement of the rod moves forward along the rod feeding axis XX, and pushes the rod W1 on the swinging member 20 forward to move the rod W1 forward. When the rear end of the rod W1 advances to a position where it can be clamped by the clamp device 90 (FIG. 1), the pusher 4 is retracted to the initial position by the feed member drive mechanism. (3) Operation of the secondary introduction mechanism The second guide rail 46 of the feed arrow 5 is moved on the first guide rail 44 by a slide drive device (not shown), and the feeding position shown by the solid line in FIG. It is selectively positioned at the retracted position shown by a virtual line.

After the pusher 4 is retracted, the swinging member 20 is retracted downward, and the clamp device 90 restrains the rear end portion of the bar W1, the feed arrow 5 is moved by the slide drive device to move the bar feed axis X. -Move to X feed position. The feed member drive mechanism (not shown) is provided with a feed arrow 5 on the second guide rail 46.
Move forward and move the finger chuck 6 of the feed arrow 5
(FIG. 2) holds the rear end of the rod W1. When the clamp device 90 releases the bar W1, the feed arrow drive mechanism is moved to NC.
The feed arrow 5 is moved forward in accordance with the machining process of the automatic lathe N (FIG. 1) to sequentially supply the bar material W1 to the NC automatic lathe N. (4) Operation of the rotation steadying device 50 The upper and lower rollers 51, 52 are selectively moved between the open position shown by the solid line in FIG. 5 and the closed position which is close to each other as shown by the phantom line in FIG. When switching from the open position to the closed position, the cylinder device 70 retracts the piston rod 71 and lowers the guide rod 55. Guide rod 55
Slot 5 formed in the guide rod 55 during the descending motion of the
The upper end wall of 7 abuts on the elevating pin 64 and rotates the link member 72 counterclockwise around the support shaft 73. The link member 72 raises the elevating pin 66 to move the elevating pin 66.
Raises the guide rod 58 of the lower roller 52.
Thus, the upper roller 51 descends and the lower roller 52
Rises, the rollers 51 and 52 move closer to each other, and move to the closed position where they can contact the bar W.

It will be easily understood that the rotation steadying device 50 is switched to the open position by the cylinder device 70 extending the piston rod 71. The steady rest 100 is also selectively switchable between an open position and a closed position by a similar structure or another conventional structure. (5) Overall Operation Mode of Bar Material Feeder 1 The bar material feeder 1 having such a device or mechanism is operated as follows, for example. i) Operation of the new material replenishing device: The bar material W1 on the material shelf 8 is taken out by the swing member 20, and the bar material W1 is the bar material feeding axis X-.
It is positioned at the feeding position on X. ii) Primary introduction of bar W1: Bar W1 by pusher 4
The rear end portion is moved to the clamp device 90. iii) Clamping of the bar W1: The clamping device 90 is the bar W
The rear end portion of 1 is gripped, and the pusher 4 retracts. iv) Retraction of the rocking member 20: The new material replenishing device is the rocking member 2
0 is rotated downward to position the swinging member 20 at the retracted position.

V) Movement of the feed arrow 4 and gripping operation of the finger chuck 6: The feed arrow 4 moves to the feeding position and advances at the feeding position, and the finger chuck 6 grips the rear end of the bar W1. To do. vi) Short-cut feeding: Clamp device 90 is bar W1
Is released, the feed arrow 4 moves forward, and the tip of the bar W1 is NC.
The main shaft of the automatic lathe N is projected forward. vii) Operation of the rotation steadying device 50, 100: The rotation steadying device 50, 100 is closed, and the upper and lower rollers 51, 52 of the rotation steadying device 50 and the steadying roller or belt of the rotation steadying device 100 are rod members. Contact W1. viii) Machining feed: The feed arrow 4 moves forward in accordance with the operation process or operation program of the NC automatic lathe N to NC the bar W1.
Supply to the spindle of automatic lathe N sequentially.

[0022]

As described above, according to the new material replenishing device of the present invention and the bar material feeder provided with the new material replenishing device, the bar material on the material shelf is oscillated or replenished with new material. The member is pushed up by the rotational movement of the member, rolls on the inclined surface of the swing member or the new material supply member, is accommodated in the rod receiving portion, and is positioned on the rod feeding axis. Therefore, it is possible to replenish the bar without dropping or dropping the bar from the material shelf,
Noise or vibration when replenishing new materials can be avoided. Further, the new material replenishing device using the swinging member or the new material replenishing member having the above-mentioned configuration has a relatively small number of parts and the structure of the device is simplified. It is possible to simplify the structure and reduce the cost of the device. Moreover, according to the new material replenishing device of the present invention and the bar material feeder equipped with the new material replenishing device, the swing member or the position avoiding the new material replenishing member, for example, the swing member and the swing member are Since the rotation steadying device and the like can be arranged relatively freely in the region between them, the degree of freedom in designing the bar feeder is significantly improved.

[Brief description of drawings]

FIG. 1 is a schematic side view showing the overall configuration of a bar feeder.

FIG. 2 is a schematic plan view showing the overall configuration of a bar feeder.

FIG. 3 is an enlarged vertical cross-sectional view of the bar material feeder 1 taken along the line AA in FIG. 1, showing the overall configuration of a new material replenishing device.

FIG. 4 is an enlarged side view of the new material supply device shown in FIG.

5 is an enlarged vertical sectional view taken along line BB of FIG.
The construction of the steady rest is shown in.

6 is an enlarged side view of the rotation steadying device shown in FIG.

FIG. 7 is a vertical sectional view showing a support structure of a feed arrow.

[Explanation of symbols]

 1 Bar Material Feeder 3 Body Frame 4 Pusher 5 Feed Arrow 8 Material Shelf 10 Rotating Axis 11 Vertical Bracket 20 Swing Member or New Material Replenishing Member 21 Pushing Up Part 22 Curved Tip Surface 23 Bar Material Pushing Up Surface 24 Inclined Surface 25 Bar Material receiving portion 26 Bottom surface 27 Bar material stop wall 30 Fluid actuated cylinder device 31 Piston rod 33 Swing lever 50, 100 Rotation steady device 51 Upper roller 52 Lower roller 80 Shelf member 82 Inclined plane 83 Adjusting member 84 Stop portion 90 Clamp Device XX Bar material feeding axis W (W1 to W7) Bar material (new material)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location // B65G 1/14 G 8819-3F 47/90 C

Claims (6)

[Claims] 1. A bar having a material shelf on which a plurality of bar materials to be supplied to a bar material processing device are mounted, and configured to replenish the bar material on the material shelf onto a bar material feeding axis line. In a new material replenishing device for a material feeder, a rotation axis which is arranged on the opposite side of the material shelf with respect to the bar feeding axis and extends substantially parallel to the bar feeding axis, and the rotation axis. And a drive device for rotating the swinging member in the first and second rotation directions, the swinging member having a predetermined width and substantially The rocking member extends in a direction orthogonal to the bar material feeding axis, and the swinging member collides with the bar material located at the lowermost end of the inclined plane of the material shelf by the rotational movement in the first rotation direction. A push-up portion including: and a sloped portion including a sloped surface that is continuous with the push-up surface and extends toward the rotation axis.
A new material replenishing device comprising a bar material guide surface which is continuous with the inclined surface and a bar material receiving portion which can be aligned with the bar material feeding axis by a rotational movement in a second rotation direction. 2. The swing member extends in a direction substantially orthogonal to a rod feeding axis, and the push-up portion for pushing up a rod on the material shelf has a predetermined radius from a rotation axis. A curved tip surface defined by a circular arc having, the inclined surface extending at a predetermined angle with respect to the rod pushing-up surface, intersecting the central axis of the rocking member, Continuing with the bottom surface of the bar receiving portion arranged in the substantially central region, the bottom surface is composed of a curved concave portion substantially complementary to the cross section of the bar material, and the center of curvature of the bottom surface is the center of the bar receiving portion. And is located on the central axis of the rocking member, and the center of the bar receiving portion matches the bar feeding axis when the rocking member is in the feeding position. The new material supply device according to claim 1. 3. The bar receiving portion is provided with a bar stop wall continuous with the bottom surface on the side opposite to the inclined surface, and the bar stop wall is substantially orthogonal to the central axis of the rocking member. The new material supply device according to claim 1 or 2, characterized in that. 4. The rotation axis is formed by a rotation shaft, and the rotation shaft is operatively connected to the drive device, and the drive device rotates the rotation shaft normally or reversely to rotate the rotation shaft. 4. The new material replenishing device according to claim 1, wherein the moving member is selectively moved to a bar feeding position, a bar pushing position and a retracted position. 5. A new material replenishing device, a bar material feeding device, and a rotation steadying device for suppressing rotational runout of a bar material that rotates at high speed during processing. The material feeding rack is provided with a material shelf on which a plurality of bar materials to be supplied to the processing device are placed, and a new material replenishing member for replenishing the bar material on the material shelf on the bar material feeding axis. The apparatus is a bar material feeder including a bar material feeding member for feeding a bar material on a bar material feeding axis to a bar material processing apparatus, and a feed member drive mechanism for driving the bar material feeding member, The new material replenishing device includes a rotating shaft arranged on the opposite side of the material shelf with respect to the rod feeding axis, and a new material replenishing member rotatably supported around the axis of the rotating shaft. The new material replenishing member has a predetermined width and extends in a direction substantially orthogonal to the bar material feeding axis, and the new material replenishing member has a first rotation direction. For pushing the bar located at the lowermost end of the inclined plane of the material shelf during the pivotal movement in the direction, and a pushing-up part having a bar pushing-up surface, which is continuous with the pushing-up surface and which feeds the bar. An inclined portion having an inclined surface extending toward the axis, and a rod receiving portion having a rod guide surface continuous with the inclined surface and alignable with the rod feeding axis by a rotational movement in the second rotation direction. A bar feeding machine characterized by having. 6. The rotation steadying device is attached to a main body frame or a frame body of a bar material feeder so as to be movable in parallel with a bar material feeding axis line, and between the new material supply member and the new material supply member. The bar material feeder according to claim 5, wherein the bar material feeder is arranged in an area.